10.5.1 Reset Vector

The Reset vector is a true vector without the legacy jump instruction (GOTO). The processor clears its registers in response to a Reset, which forces the PC to 0x800000. The processor then begins program execution at the fixed Reset vector at 0x800000. The Reset vector at the Reset address redirects program execution to the appropriate start-up routine.

When a Reset is asserted, the user vector read commences. When available, the Reset vector contents are presented to the CPU. The data is then immediately transferred to the Program Space address bus to create the address of the first instruction to be executed.